2001242511 has 8 divisors (see below), whose sum is σ = 2964803760. Its totient is φ = 1334161656.

The previous prime is 2001242501. The next prime is 2001242531. The reversal of 2001242511 is 1152421002.

2001242511 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2001242511 - 2²⁶ = 1934133647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001242501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37060020 + ... + 37060073.

It is an arithmetic number, because the mean of its divisors is an integer number (370600470).

Almost surely, 2^2001242511 is an apocalyptic number.

2001242511 is a deficient number, since it is larger than the sum of its proper divisors (963561249).

2001242511 is an equidigital number, since it uses as much as digits as its factorization.

2001242511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74120102 (or 74120096 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2001242511 is about 44735.2490883867. The cubic root of 2001242511 is about 1260.1819068433.

Adding to 2001242511 its reverse (1152421002), we get a palindrome (3153663513).

The spelling of 2001242511 in words is "two billion, one million, two hundred forty-two thousand, five hundred eleven".